Flea vs Lesser Noctule

Ctenocephalides canis compared with Nyctalus leisleri

Key Differences

• Flea is Not Evaluated while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Flea	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Siphonaptera (Siphonaptera)	Chiroptera (Bats)
Family	Pulicidae	Vespertilionidae
Genus	Ctenocephalides	Nyctalus
Species	Ctenocephalides canis	Nyctalus leisleri

Evolutionary Relationship

Flea and Lesser Noctule share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Flea

NE — Not Evaluated

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Flea	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and North America (United States).

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden